Tobacco-pipe.



Patented Aug. 28, |900.

No. 657,0I9.

H. B. BARTON.

TOBACCO PIPE.

(Application filed Aug. 28, 1899.

(No Model.)

UNITED STATES PATENT OFFICE.

HENRY B. BARTON, OF ST. LOUIS, MISSOURI.

TOBACCO-PIPE.

SPECIFICATION forming part of Letters Patent No. 657,019, dated August28, 1900. y Application filed August 28, 1899. Serial No. 728,702. (Nomodel.)

To all whom it may concern:

Be it known that I, HENRY B. BARTON, a citizen of the United States,residing at the city of St. Louis, State of Missouri, have invented acertain new and useful Improvement in Tobacco-Pipes, of which thefollowing is a full, clear, and exact description, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, forming part ofthis specification.

My invention relates to a new and useful improvement in tobacco-pipes,the objects being to construct a pipe in such manner that the salivawill not flow from the mouth down the stem and dampen the tobacco in thebowl or become contaminated with nicotin and be drawn back into themouth and also to construct a pipe in such manner that by removing acap-piece and blowing air through the mouthpiece of the pipe a suctionis produced which causes the smoke to be drawn from the bowl through aduct leading therefrom and ejected through a separate duct to theatmosphere, thereby forcing and drawing any accumulation of saliva,moisture, or small particles of tobacco from the ducts in the stem ofthe pipe.

Vith these objects in view the invention consists in the construction,arrangement, and combination of the several parts, all as willhereinafter be described, and afterward pointed out in the claims.

I attain the objects just referred to by the arrangement andconstruction of the several parts of my improved tobacco-pipe, as isillustrated in the accompanying drawings, in which*- Figure lis avertical longitudinal sectional view of myimproved tobacco-pipe. Fig. 2is a plan view of the same, partly in section; and Fig. 3 is a verticallongitudinal sectional view of a slightly-modified form of my improvedtobacco-pipe.

Like characters refer to like parts throughout the several views.

In the drawings, A represents the bowl, and B the mouthpiece, of myimproved tobaccopipe.

In Figs. l and 2, C represents a section of the stem which when properlysecured to the bowl A and mouthpiece I3 form my im proved pipe.

The bowl A is provided with the usual duct a, which is in axialalinement with and opens into a screw-threaded recess a. The section ofthe stem marked C is provided with a screwthreaded portion c, adapted tocooperate with and engage the screw-threaded recess a. On the other endof the stem-section C, or the end opposite that upon which thescrewthreaded portion c is formed, is provided a screw-threaded recessc', and formed on one end of the mouthpiece B is a screw-threadedportion h, adapted to coperate with and engage said recess c formed inthe section C.

Extending inwardly from the screw-threaded recess c is a recess c,'andopening into said recess c at, preferably, the lower side andtheinnerend is what I will term a pocket du ct 0', said pocket-duct c'"being arranged at such an angle, which is preferably downwardly andtoward the bowl, as to cause any saliva which might gather in the recessc to settle thereinto.

c"" indicates a duct formed longitudinally through the section C, oneend of said duct opening into the recess c", while the other end of saidduct terminates at the end of the screw-threaded portion o, at whichlatter point it registers with the duct a. of the bowl.

Theinner end of the mouthpiece B is preferably provided with a teat ornozzle b', the end of which nozzle is, when the pipe is prop'- erlyassembled, directly in axial alinement with the pocket-duct 0. The ductb" in the mouthpiece Bis so formed as to pierce the teat or nozzle b andby a suitable curve is caused to aline with the pocket-duct c". (SeeFigs. 1 and 3.)

D represents a cap-piece, which may be formed of any suitable materialand is designed to close the outer end of the pockets duct c", said capbeing adapted to be removed when it is desired to free the pipe ofsaliva, moisture, nicotin, or other objectionable matter.

It will be observed from a glance at the drawings that when the bowl isfilled with tobacco and ignited and the smoker draws upon the mouthpiecein the usual manner the smoke passes through the duct b into the IOOmouth; but any saliva which may run from the mouth into the stem or,rather, through the duct b is arrested by the recess c and the lllpocket-duct c and is thus prevented from entering the ducts 0" and a andcommingling with the tobacco in the bowl.

When it is desired to clean the pipe or cause a current of air or smoketo pass'through the several ducts to remove saliva or other deposits,the cap-piece D is removed and the smoker blows through the mouthpiece,which action vcauses the saliva, dac., to be forced through the duct b"into and through the pocket-duct 0 to the atmosphere. This actionproduces in the recess c a partial vacuum, which vacuum draws the smokeand air from the bowl A thereinto and through the instrumentality of theblast of air through the duct b, which is, as before stated, directedinto and through the pocket-duct 0'", said smoke and air being ejectedfrom said recess c through said pocket-duct c" to the atmosphere. Fromthe above it will be seen that my improved pipe can be quickly andthoroughly cleaned without necessitating the extinguishment of theignited tobacco or removing the same from lthe bowl.

In Fig. 3 I have illustrated a slightly-modified form of pipe, wherein Ihave formed the stem portion, which contains the recess c and thepocket-duct c", integral with the bowl, thus dispensing with one jointand one section of pipe. In other respects this pipe is identical inconstruction to that illustrated in Figs. 1 and 2 of the drawings.

Iam aware that minor changes in the arrangement, construction, andcombination of several parts of my device can be madeand substituted forthose herein shown and described without in the least departing from thenature and principle of my invention.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

l. In a tobacco-pipe, the combination` with the bowl formed with asmoke-duct leading therefrom, of a stem formed with a smokeductsubstantially in axial alinement with the smoke-duct from the bowl, theVacuumchamber into and from which said ducts lead, a pocket-duct leadingfrom the bottom of the vacuum-chamber, and arranged at an angle to theaxis of the ducts first mentioned, a removable cap or cover for closingthe lower end of said pocket-duct, and a teat or nozzle formed on theinner end of the stem and projecting into the vacuum-chamber, said teatbeing formed with a portion of the smokeduct of the stem, which at thispoint, is curved so that at the extremity of said teat, said duct is inaxial alinement. with the pocket-duct and adjacent thereto, whereby, inone operation the duct'in the stem is used as a draftduct, and inanother, as an injector for injecting the material from the smoke-ductof the bowl and stem into said pocket-duct, said blast being conductedinto and through the pocket-duct; substantially as described.

2. In a tobacco-pipe, the combination of a bowl, a stem having asmoke-duct leading from the bowl to an enlarged vacuum-chamber c in thestem, a pocket-duct extending downwardly from said Vacuum-chamber,aremovable closure closing the lower end thereof, and a teat or nippleextending into said vacuum-chamber opposite the smoke-duct from the bowland having a duct connecting with a duct in the mouth end of the stemand terminating at a point directly opposite and adjacent to saidpocketduct, and directed in line therewith whereby when said closure isremoved and a blast produced in the stem an injector eEect is produceddrawing matter from the bowl end of the smoke-duct and forcing the samethrough the pocket-duct, substantially as described.

In testimony whereof I hereunto affix my signature, in the presence oftwo witnesses, this 26th day of August, 1899.

HENRY B. BARTGN.

Witnesses:

F. R. CoRNwALL, RALPH KALISH.

